Indexing Pressure Circuit Breaker
warningResource ContentionUpdated Feb 6, 2026
Indexing operations consuming excessive memory trigger rejection when Indexing_Pressure_Current_Bytes exceeds Indexing_Pressure_Current_Limits, protecting cluster stability but causing write failures.
How to detect:
Track Indexing_Pressure_Rejection_Count increases when Indexing_Pressure_Current_Bytes approaches Indexing_Pressure_Current_Limits. Monitor per-stage pressure (Coordinating, Primary, Replica) and correlate with Indexing_Pressure_Average_Window_Throughput drops.
Recommended action:
Reduce bulk indexing batch sizes, implement backpressure in upstream producers, tune indexing pressure limits if appropriate, investigate document size and complexity, or add nodes to distribute indexing load.